How is data compression done in UMTS?
Video and music compression will be done in application level. 3G phone (and network application servers) will have programs (or you will be downloading them) that records and displays video or music. Those programs have build-in data compression features. Good examples are MP3 and other music programs. MP3 codec includes data compression and most current music player understands it. For image and video there are several standards including JPEG, MPEG-4, H.263, Microsoft media player etc. available. From 3GPP 26.234 7.4 Video: ITU-T Recommendation H.263 [22] profile 0 level 10 shall be supported. This is the mandatory video decoder for the PSS. In addition, PSS should support: – H.263 [23] Profile 3 Level 10 decoder; – MPEG-4 Visual Simple Profile Level 0 decoder, [24] and [25]. These two video decoders are optional to implement. NOTE: ITU-T Recommendation H.263 [22] baseline has been mandated to ensure that video-enabled PSS support a minimum baseline video capability and interoperabi
Video and music compression will be done in application level. 3G phone (and network application servers) will have programs (or you will be downloading them) that records and displays video or music. Those programs have build-in data compression features. Good examples are MP3 and other music programs. MP3 codec includes data compression and most current music player understands it. For image and video there are several standards including JPEG, MPEG-4, H.263, Microsoft media player etc. available. From 3GPP 26.234 7.4 Video: ITU-T Recommendation H.263 [22] profile 0 level 10 shall be supported. This is the mandatory video decoder for the PSS. In addition, PSS should support: • – H.263 [23] Profile 3 Level 10 decoder; • – MPEG-4 Visual Simple Profile Level 0 decoder, [24] and [25]. These two video decoders are optional to implement. NOTE: ITU-T Recommendation H.263 [22] baseline has been mandated to ensure that video-enabled PSS support a minimum baseline video capability and interope
